John s



(No Model.)

- J.S.STEVENSON.

BENDING MAUHINE.

No. 430,898. Patented June 24, 1890.

Witnesses ,fwv-end-ar QMW UNITED STATES PATENT OFFICE.

JOHN S. STEVENSON, OF DETROIT, MICHIGAN, ASSIGNOR TO THE PENINSULAR OAR COMPANY, OF SAME PLACE.

BENDlNG-MACHINE.

SPECIFICATION forming part of Letters Patent No. 430,898, dated June 24, 1890.

Application filed October 24, 1889. Serial No. 328,084 (No model.)

To aZZ whom it may concern: (represented by E) is heated and laid across Be it known that I, JOHN S. STEVENSON, of the face of the die D. The rotation of the 55 Detroit, in the county of WVayne and State of wheel causes the wrist-pin R, acting through Michigan, have invented a new and useful the connecting-rod L, to force the die 0 against Improvement in Bending-Machines, of which the article E and bend it into the shape of the following is a specification. the faces of the two dies. Ordinarily the ar- My invention relates to bending-machines, ticle bent then has to be removed from the and has for its object to provide improved machine and cut to length in a separate madevices for bending and cutting metal, as chine. ThisIavoid by the mechanism above 10 hereinafter more fully set forth.- described. At the time the wrist-pin is in the Figure 1 is a side elevation of the machine, position shown in Fig. 1 the die 0 is firmly and Fig. 2 is a top plan view of one half of pressed against the die D, clamping the arthe machine, the other half being exactly the ticle between the two dies. The motion of same. the wrist-pin R is at this time nearly at right 15 Arepresents the bed of the machine, on the angles with the line of the motion of the die end of which is a stationary die D, having its 0, so that the travel of said wrist-pin has very inner face of the shape that it is desired to' little effect upon said die; but as the lever-M 7c give to the article to be bent. is at this time in position where its motion 0 represents a movable die which slides on will have its greatest effect upon the connect- :0 ways Bin the bed A, and whose face is the ing-rod N the movement of said wrist-pin converse of the die D. causes the lever M to actuate the connecting- 0 represents a gear-wheel mounted on a rod N and force the sliding head I forward, shaft extending across the bed of the machine, bringing the knives G against the ends of the which receives power from a pinion. article E, and thus automatically cutting it 25 R represents a wrist-pin secured to the to the desired length, after which the conwheelO, and L represents a connecting-rod, tinued movement of the wrist-pin R will withone end of which is pivoted to-the wrist-pin draw the die 0 and permit the article E to be R, and the other end of which is pivoted to removed'and a new one put in its place. I

the movable die C. IVhat I- claim as my invention, and desire 30 M represents a lever which is rigidlysecured to secure by Letters Patent, is-

to the wrist-pin R. 1. The combination, with the movable die J J represent guides secured to the side of and actuating mechanism therefor, in a bendthe movable die O, in which moves a sliding ing-machine, of ahead carried by and moving head I, on the end of which is fasteneda knife on the movable die, a cutting-knife attached 3 5 G, with its cutting-edge lying close to the side to said head, and means for moving the knifeof the die 0. I usually secure this knife G carrying head on the die,substantially as dcto the sliding head by an angle-iron I-I, bolted scribed. both to the head and to the knife, this per- 2. In a bending-machine, the combination, mittingtheknife to beadjusted toorawayfrom with a movable die and the actuating mech- 4c the side of (lie 0, the angle-iron having slots anism thereof, of a sliding head carried on through which the holding-bolts pass but the said movable die, a knife on said sliding head, knife may be fastened in any other convenand actuating mechanism connecting said ient way. head with the die-actuating mechanism, sub- Frepresentsaguide-plate adj ustably bolted stantially as shown and described.

5 to the die O to support the knife ,G while 3. In combination with a wheel 0, wristmaking its out. pin R, connecting-rod L, and die 0, the lever E represents the article to be bent. M, connecting-rod N, sliding head I, and knife I00 N represents a coiinectingrod, one end of G, substantially as shown and described. which is pivoted to the end of the lever M, i

50 while the other end is pivoted to the sliding JOHN S1 EVENSON' head I. Witnesses:

The operation of my invention is as follows: J 0s. H. AMES, In bending articles, especially irons, the iron CYRUS E. LOTHROP. 

